Is there a way to, using the command line, make Blender render using a specific camera (potentially not the default camera set in the .blend file) through the command line?

This is an interesting feature to have when doing batch rendering of more complex scenes (30-90s animation project I am involved, with multiple camera shots to be edited later), and it would be a pain to have to use the GUI just to switch from camera to camera.

I'm currently downloading the CVS snapshot to take a look at the blender sources to see if it would be too much of a hassle to implement a simple solution (a new CL switch, possibly). Has anyone tried something similar?